Planograi ll co



A. M. GRIFFIN.

P-LATE SHAPING MACHINE.

I I APPLICATION H'LED OCT. 5. 19'8- 1 3 1 6 ,300. Patented Sept, 16, 1919.

5 SHEETS.SHEET I.

A. M. GRIFFIN.

PLATE SHAPING MACHINE.

APPLICATION FILED ocr. 5 1918.

1,816,300. I PatentedSept.16,1919.

5 SHEETS-SHEET 3.

4 I z 5 4 0 4 o 5 5 IIIIII/IIIIIm'IIIIIIIIIIIII/III I u I E- 4 IN Vazy QR ilra/z A7. 6/7/5911. m BY b N N U A TTORNEY nus COLUMBIA PLANOGRAI'II cm. WASHINGTON, D. c.

A. M. GRIFFIN.

PLATE SHAPING MACHINE.

APPLICATION FILED OCT. 5. !9l8.

1 ,3 1 6,300. Patented Sept; 16,1919.

5 SHEETS-SHEET 4- f IIIIIIIZIIIIIIIIIIIIII 1- JNVENTOR ATTORNEY A. M. GRIFFIN;

PLATE SHAPING MACHINE.

APPLICATION FILED OCT. 5. 1918.

1 ,31 6,30 0. Patented Sept. 16, 1919.

5 SHEETS-SHEET 5- JNVENTOR By 4/ KM. 6/7/1977.

ATTORNEY ard bearings;

UNITED sT TEs PATENT oFFIoE.

ALVAH M. GRIFFIN, on KANsAs CITY, M SsouRI, AssIGNoR T0 KANSAS CITY M AL HEAD DISHING- MAoHI n ooMPANY, or KANSAS CITY, MISSOURI, A CORPORATION OF MISSOURI.

PLATE-SHAPING; MACHINE.

Application filed October 5, 1918. Serial No. 257,013.

To all whom it may concern;

Be it known that I, ALVAH M. GR FFIN, a citizen of the United States, residing at Kansas City, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Plate-Shaping Machines; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to a machine for dishing plates and particularly to provide concavo-convex plates adapted to be used as the ends of tanks. 1

One of the objects of the invention is to provide a machine capable of spinning a plate to cause it to conform to a predetermined shape, the finished plate having a central bulge so that a concavo-convex "end is formed for the tank or receptacle towhich the end is to be applied.

In the drawings:

Figure I is a perspective view of the machine constructed in accordance with my invention. A

Fig. II is a vertical longitudinal sectional view through the same. 1

Fig. III is a sectional view on the line III-III of Fig. II.

Fig. IV is a sectional view on the line IVIV of Fig. III.

Fig. V is a sectional view on the line VV of Fig. II.

Fig. VI. is anend view of the machine.

Fig. VII is a detail view of a reversing clutch. I

Fig. VIII is a sectional view through the machine table.

' Fig- IX is a detail perspective view of one o'f-the spinning rollers.

Fig. Xis a detail perspective View of the clutch operating mechanism .for the spinning roller feed.

Fig. XI is a coupling for the rock shaft for throwing in the clutch for the spinning roller mechanism.

Fig. XII is a top View of one of the stand l3. loose on the shaft 15 which is journaled di- Fig. XIII is a fragmentary end view of one of the standards. Referring now to the drawings merals of'reference: A

1 designates a hollow base upon which is rotatably mounted a table2 supported on by n u- Patented s eio, 1919,- i

anti-friction bearings 3 and pivoted to the base by the pivot 1. The tablei2 is illustrated as circular and it is shown as provided with a depending peripheral flange 5 provided with inwardly projecting teeth forming an internal gear and meshingtherewith is a pinion 6 on the vertical shaft '7 mounted in the base. At the lower end of the shaft 7 is a beveled gear 8 which meshes w1th a beveled gear 9 on the shaft 10 which may be driven from any suitable source.

The shaft 10 carries a gear 11 and a sprocket The gear 11 meshes with a gear 14 agonally of the base as shown in Fig. III

and which is supported in bearings 16 and,

17. The sprocket 13 fixed on shaft 10- is adapted to drive, thesprocket 18 loose on shaft 15 through the medium of the .chain 7 19. The sprocket 18 and the gear 14 are provided with clutch faces 20 and 21' respectively, adapted to be alternately engaged at the ringclutch member 22 spline'd on the shaft 15 and adapted to be shifted in either direction through the medium of the lever 23 and its operating rod24. If

the clutch is shifted to hold the .gear 14 in fixed relation to the shaft 15, the shaft '15 will be driven in one-direction while the sprocket 18 will be simply driven idly on its shaft. If however, the clutch is shifted to hold the sprocket 18 in fixed relation with the shaft 15, said shaft will be driven-in an opposite direction and the gear 14 will simply rotate idly on the shaft which carriesit. By, referring to Fig.,III it will beob-..

. served that the shaft 15 is mounted diagonally of the base frame 1 and that it carries the worms 25 and 26 meshing withthe worm gears 27 and 28 respectively; The

'worms 25 and '26 are on. opposite sides of the axis of the base and therefore rotate the screw standards 29 and 30' in o posie directions, it being understood that t e standards 29 and 80 are driven by theworm gears 27 and'2-8gwhich are fixed thereto. 7

The standards 29 and 30 are mounted in fixed bearings 31 and 32 on the base 1 and are prm ided with left and right hand screw threads 33 and 34 respectively. These threads engage the internally threaded tubular members 35 and 36 of the vertically movable frame 37 which is shown as in the form of a girder so that when the, standards 29 nd 30 are rotated in one direction under the control of the clutch 22, the frame 37 will be lowered but when rotated in the opposite direction, the frame will be raised. The lower edge of the girder or frame 37 is provided with outwardly projecting guide flanges 38 and 38 engaged by the flange channel members 39 and 40 of the spinning roller supports 41 and '42 which carry the rollers 43 and 44.

Mounted in bearings 45 and 45 carried by the tubular members 35 and 36 of the frame 37 is a feed screw 47 having right and left threads 48 and 49 which engage corresponding internal threaded portions in the supports 41 and 42 through which it passes whereby the rotation of the feed screw 47 in one direction will move the supports 41 and 42 toward one another and the rotation of the feed screw in an opposite direction, will be effective in moving the supports apart. The feed screw is provided with a gear 50 which meshes with a gear 51 on the stub shaft 52 which carries the gear 53 meshing with the gear 54 on the motor shaft 55 of the motor 56 carried by the bracket 57 on the member 36. The gear 54 is loose on the motor shaft but is adapted to be brought into fixed relation therewith by the clutch 58 actuated by the clutch lever 59 which is normally moved out of clutch actuating-position by the spring 60. r 7 Connected to the free end of the lever 59 isa clutch member 61 having a recess adapted to receive one end of the clutch actuating rocker shaft 62 which carries a complementary clutch member 63. The rocker shaft 62 is journaled in the bearings 64 and 65 and it is provided with an outstanding crank 66 connected to theelbow lever 67 by a link 68. The elbow lever-is pivoted to the bracket 69 carried by the spinning wheel support 42. 7 At the free end of the elbow lever 67 is a roller 70 adapted to bear against the edge 71 of the templet 72 depending from the supporting bar 73 through which the restricted ends 74of the standards 29 and 30 project, the bar 73 being loosely held on said standards by "the fastening devices'74 and 75. 7

The table 2 is provided with radially disposed undercut slots 76 adapted to receive clamps 77 to engage a suitable support 78. The slotsand clamps providea convenient means for positioning and holding the'form. The sheet 79 to be treated may be clamped to the form by the fastening devices 80 receivable within the slots, said devices overlapping the edges of the sheet.

Assuming the parts to be arranged in the manner heretofore described and assuming that the motor 56 is continuously running, the operator will position the sheet upon the form and throw the clutch 22 into position so that the gear 14 is held in fixed relation to the shaft 15. The standards 29 and 30 will be rotated so as to feed the frame 37 toward the work, causing the wheels to comeinto contact with the sheet while the table is being rotated through the medium of the shaft 7 and pinion 6.

Inthis-"manner pressure will be exerted against the [sheet and the displacement of metal will take place as is common in spin ning operations to cause the sheet to con form to the shape of the die or matrix. The

motor 56 is continuously running and through the gearing Wlll impart motlon to the spinning roller supports 41 and 42 to move them toward one another and during the entire movement, the roller 70 on the bell crank 67 carried by bracket 69 will press against the edge 71 of the templet 7 2. If the feed for the roller supports is too rapid, the roller 70 will ride on the downwardly curved edge 71 of the templet in advance of the proper position it should assume with respect to the position of the frame 37, it being understood that the transverse feed of the spinning rollers should have a definite relation to the downward feed'of the frame 37 As a result,'the pressure on the roller 66 so as to partially rotate shaft 62, thereby causing the irregular faces or elements 63 and 61 to be opposed so that elements 61 will be shifted longitudinally, rocking lever 60 and throwing out clutch 58 wherebv'the feed will be discontinued until elbow lever 67 may be retracted by spring 81, to cause the roller to bear against the edge 71 of thetemplet 72. l/Vhen this takes place the motor 56 may again start to drive the feed mechanism.

After the operation has been completed, the plate 79 and its die may be removed and the plate may be flanged by any appropriate means so as to render it capable of being attached to the tank cylinder.

In order to restore the frame 37 to a posit1on upon the table 2 sufficiently high to permit a new die and plate tobe inserted, the

clutch 22' will be shifted so as to permit the gear 14 to run idly on shaft 15 but clutch sprocket 18 of said shaft. The direction of rotation of'the standards 29 and 30 will thus be reversed and the frame or carriage 37 will be elevated. i

The form carried by the table may partake of any approved constri'ictio'n.

. For example, in simply concaving plates for use as ends of tanks; a single ring as shown may be fastened to the table 2, obviously other forms may also be employed.

The motor 56 is provided with a reversible field whereby a reverse motion may be imparted to the driving screw 47 to move the spinning rollers toward the perimeter of the table after the spinning operation has been completed.

Having thus described my invention what I claim as new therein and desire to secure by Letters-Patent, is:

1. In a metal plate concaving machine, a

work carrying table, a frame mo-valble to ward and away from said table, spinning roller supports mounted for lateral movement with respect to said frame to hold against independent vertical movement with respect thereto, a screw rod pas-sing through said roller supports and capable when turned of moving them one toward the other, a constantly operating motor for driving said screw, a clutch, a templet and means controlled by the templet for operating the clutch to bring the motor into and out of operative connection with the screw.

2. In a metal plate concaving machine, a rotatable work-receiving table, a frame, means for raising and lowering the frame with respect to the table, spinning rollers on the frame, operating means carried by the frame for imparting lateral movement to said rollers toward and away from the center of the table, a templet adjacent to the frame having a curved edge conforming to the designed curvature of the finished plate, and means controlled by the templet for controlling the operating means.

3. In a metal plate concaving machine, a horizontal, rotatable work table, a frame, means for progressively moving the frame toward the work table, spinning rollers carried by the frame, means for progressively advancing the rollers toward the center of the table, a templet carried by the machine and having a horizontally disposed, curved edge, and a controller actuated by the templet to render the roller-advancing means effective and ineffective.

I. In a metal plate concaving machine, a horizontally disposed, rotatable work holder, a frame, standards about the holder having screw feed connection with the frame to move it in a vertical position toward the work holder, spinning rollers moving laterally on the frame, one toward the other, means for imparting simultaneous movement to said rollers, and means for temporarily rendering the first named means ineffective including a 'clntcli' mechanism; and a templet having an edge conforming to the designed curvature of the finished product, said edge being in the path of movement of an element of the clutch mechanism.

5. In a metal plate concaving machine, a rotatable table, a frame above the table, means for progressively feeding the frame toward the table, horizontally movable, spinning-roller carrying brackets slidable on the frame, a screw for progressively feeding the rollers one toward the other, a

constantly rotating motor, gearing between the motor and the screw, normally operatively connected, a clutch between the motor and the screw, a clutch-actuated arm carried by one of the brackets, and a templet for engagement with said clutch-actuating arm.

6. In a metal plate concaving machine, a rotatable work-carrying table, a frame, means for progressively moving said frame toward the table, spinning rollers carried by the frame. and movable laterally across the table, a screw for feeding said rollers one toward the other, an operating mechanism for said screw, a templet, and means actuated by the templet for temporarily rendering the screw ineffective to move said rollers.

7. In a metal plate concaving machine, a rotatable work-carrying table, a frame, means for progressively moving said frame toward the table, spinning rollers carried by the frame and movable laterally across the table, a screw for feeding said rollers one toward the other, an operating mechanism for said screw, a templet, and means actuated by the templet for temporarily rendering the screw ineffective tomove said rollers, said means including a bell crank lever and clutch-actuating mechanism connected thereto.

8. In a plate concaving machine, a base, vertical standards on said base having screw threads, a frame extending transversely of the base and having internally'threadedbarrels engaged by the threaded portions of the standards, a work table on said base, laterally movable, spinning-roller brackets slidable on said frame, a screw for simultaneously actuating said brackets, a power device for said screw, a clutch'between the power device and the screw, a lever mecha nism for actuating said clutch, and a laterally extending templet having a curved edge conforming to the designed curvature of the finished product, said edge being capable of contacting with a part of the clutch mechanism to normally maintain the power device and screw in operative relation.

In testimony whereof I aflix my signature.

ALvAH M. GRIFFIN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

